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Finding the Fourth Proportional to 66,113.68, 91,237.50 and 35,899.32

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Solution

The fourth proportional to 66,113.68, 91,237.50 and 35,899.32 is: 49,541.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,113.68 : 91,237.50 = 35,899.32 : x
  2. Step 2: Convert to fraction form
    66,113.68/91,237.50 = 35,899.32/x
  3. Step 3: Cross multiply
    66,113.68x = 91,237.50 × 35,899.32
  4. Step 4: Simplify right side
    66,113.68x = 3,275,364,208.50
  5. Step 5: Solve for x
    x = 3,275,364,208.50/66,113.68
  6. Step 6: Final answer
    x = 49,541.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.